From d0033117755e6697548d7dffb9d4c48ead30f59a Mon Sep 17 00:00:00 2001
From: early evening <eve@eatbigger.fish>
Date: Thu, 11 May 2023 10:49:46 -0700
Subject: [PATCH] fix(docmaps-sdk): add @context when missing (#54)

---
 packages/ts-sdk/src/test/types.test.ts | 40 +++++++++++++++++++-------
 packages/ts-sdk/src/types.ts           |  6 ++++
 2 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/packages/ts-sdk/src/test/types.test.ts b/packages/ts-sdk/src/test/types.test.ts
index 26f80e93..c2819f72 100644
--- a/packages/ts-sdk/src/test/types.test.ts
+++ b/packages/ts-sdk/src/test/types.test.ts
@@ -1,19 +1,25 @@
 import test, { ExecutionContext } from 'ava'
 import { PartialExamples as ex } from './__fixtures__'
 import * as dm from '../types'
-import { Either, isRight } from 'fp-ts/lib/Either'
-import util from 'util'
+import * as E from 'fp-ts/lib/Either'
+import * as util from 'util'
+import { pipe } from 'fp-ts/lib/pipeable'
 
-function isRightArray(t: ExecutionContext, arr: Either<unknown, any>[], len: number) {
+function isRightArray<T>(
+  t: ExecutionContext,
+  arr: E.Either<unknown, T>[],
+  len: number,
+  proc?: (_a: readonly T[]) => void,
+) {
   t.is(arr.length, len)
 
-  arr.map((a) => {
-    if (isRight(a)) {
-      t.pass()
-    } else {
-      t.fail(`Error parsing: ${util.inspect(a.left, { depth: 18 })}`)
-    }
-  })
+  pipe(
+    arr,
+    E.sequenceArray,
+    E.mapLeft((e) => t.fail(`Error parsing: ${util.inspect(e, { depth: 18 })}`)),
+    //eslint-disable-next-line
+    E.map(proc || (() => {})),
+  )
 }
 
 test('Codec parsing DocmapOnlineAccount', (t) => {
@@ -83,5 +89,17 @@ test('Codec parsing Docmap', (t) => {
   const v = ex.elife.Docmap.flatMap((x) => {
     return dm.Docmap.decode(x)
   })
-  isRightArray(t, v, 2)
+  isRightArray(t, v, 2, (arr) => {
+    t.deepEqual(arr[0]?.['@context'], 'https://w3id.org/docmaps/context.jsonld')
+  })
+})
+
+test('Codec inserts missing @context key for Docmap', (t) => {
+  const v = ex.elife.Docmap.flatMap((x) => {
+    const { ['@context']: _, ...stripped } = x
+    return dm.Docmap.decode(stripped)
+  })
+  isRightArray(t, v, 2, (arr) => {
+    t.deepEqual(arr[0]?.['@context'], 'https://w3id.org/docmaps/context.jsonld')
+  })
 })
diff --git a/packages/ts-sdk/src/types.ts b/packages/ts-sdk/src/types.ts
index 03ef781e..36193e59 100644
--- a/packages/ts-sdk/src/types.ts
+++ b/packages/ts-sdk/src/types.ts
@@ -1,4 +1,5 @@
 import * as t from 'io-ts'
+import { fromNullable } from 'io-ts-types/lib/fromNullable'
 import { UrlFromString, DateFromUnknown } from './util'
 
 function arrayOrOneOf(literalStrings: string[]) {
@@ -137,6 +138,11 @@ export const DocmapStep = t.intersection([
 export const Docmap = t.intersection([
   t.type({
     id: t.string,
+    // only one legal value, and fill it if absent
+    '@context': fromNullable(
+      t.literal('https://w3id.org/docmaps/context.jsonld'),
+      'https://w3id.org/docmaps/context.jsonld',
+    ),
     type: arrayOrOneOf([
       // TODO support something where docmaps: is prefixed
       // t.literal('docmaps:docmap'),